Ask Engadget HD: What's the best mid-range AV receiver?

We're keeping it short and sweet this week, but you can feel free to test your dissertation writing skills in comments below should you feel compelled to answer. And you know you're eager to help Dave out here, right?

"My old receiver is starting to crap out on me and I'm looking to replace it soon. I don't know a lot about receivers but I'm looking at something in the $500 to $700 range. Any suggestions?"

Like we said, brief and beautiful, and tons of wiggle room. Show this guy what kind of knowledge you've got, and make sure you point him out a solid deal, too.

Got a burning question that you'd love to toss out for Engadget HD (or its readers) to take a look at? Tired of Google's blank stares when you ask for real-world experiences? Hit us up at ask at engadgethd dawt com and keep an eye on this space -- your inquiry could be next.